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PRODUCT DESIGNER

Case Study: Secure Peer-to-Peer Content Sharing

Fast, controlled content sharing across Wi-Fi networks, built with privacy and clarity in mind.​

🧭 Project Overview​

Pxio is a mobile and desktop app that allows users to instantly share visual content across nearby devices connected to the same Wi-Fi network. Designed for co-working spaces and teams, it prioritizes speed, access control, and data privacy—removing the need for cloud uploads or third-party storage.

Key features included:

  • Role-based access control (RBAC)

  • Visibility filters (who can see whom on the network)

  • End-to-end content encryption

  • Ephemeral session sharing (auto-deletes after 1 hour)

 

👤 My Role

 

I was the sole Product Designer on a compact team that included:

  • 3 Engineers (front-end and back-end)

  • 1 Product Manager

We built the MVP in a focused 2-week sprint, and I led UX strategy, interface design, prototyping, and user feedback collection.
I was responsible for:

  • Defined and iterated UX flows and product strategy to align with user needs and platform access models.

  • Led user research and journey mapping, transforming feedback into actionable insights for secure onboarding and access controls.

  • Created and tested interactive prototypes for enterprise SaaS, enabling early feedback and ensuring alignment with Trust and Safety principles.

  • Partnered with product and engineering to maintain a unified design system, improving cross-platform UX and reducing cognitive load.

🔧Tools

  • Figma

  • Stories On Board

  • Atlassian

  • Storybook

  • HubSpot

🧩 The Problem

Existing file-sharing tools like AirDrop or WeTransfer fell short in several critical ways:

  • They were either OS-specific or not truly cross-platform, limiting seamless sharing across different devices.

  • They were too open by default, allowing unintended users on the same network to access shared files without proper controls.

  • They lacked permission management suitable for dynamic workspaces—like coworking environments—where visibility over who can see or access files needs to be both customizable and simple.

  • Traditional solutions relying on cables, wires, or physical sockets introduced additional problems: they were inconvenient, cluttered shared spaces, created compatibility issues between devices, and often required adapters or extra hardware.

 

We needed a lightweight, secure, and private solution that enabled selective content sharing without physical connections, offering easy, flexible permission controls tailored for dynamic shared environments like WeWork.​​​​​​

🔍 Discovery & Research


To understand the needs and expectations, I:

  • Conducted 5 user interviews with freelancers, facilitators, and remote teams

  • Benchmarked tools like Snapdrop, Slack, AirDrop, and Nearby Share

  • Mapped common UX failures, especially around visibility and access assumptions

 

Key insight: people wanted quick sharing but with clear limits and awareness—they needed to trust who could see them and their content.

✏️ Design Process


Although I no longer have access to the early wireframes, my process included:

  • Mapping key flows: onboarding, visibility control, file send/receive

  • Low-fidelity prototyping in Figma

  • Real-time feedback and testing at Halle4 - WeWork with nearby users

  • Iterative updates based on ease-of-use concerns

  • One of the biggest UX challenges was designing access controls that felt invisible—users didn’t want to “configure permissions” but needed them to work intuitively.

🔄 Testing & Iteration


We tested with 8–10 users inside Halle4 -WeWork and made iterative improvements:

  • Added a real-time “Active Peers” panel showing who was discoverable

  • Simplified success/failure indicators during file transfer or establishing a connection

  • Created a default visibility filter: “Only teammates can see me”

✅ Final Solution

 

  • Card-based UI to represent nearby devices and their roles

  • Drag-and-drop file send flow with instant feedback

  • RBAC baked into onboarding: Admins, Editors, Viewers

  • Session-based encryption: content automatically expires

  • Visibility Scope toggle: quickly set who can discover or interact with you

  • You can see the prototypes that were created below. These prototypes represent the iterative product screens for Pxio, showing how users could control visibility, manage roles, and share content seamlessly.

📊 Results & Feedback


While informal, our testing yielded clear positive outcomes:

  • 67% of test users said Pxio felt “faster and more private” than their current workflow

  • Stakeholders praised the simplicity and minimal visual friction

  • 2 teams adopted Pxio as a pilot tool during design sprint reviews

  • Users especially loved the clarity around “who can see me”

💡 Learnings & Reflections

 

  • Simplicity + security requires thoughtful defaults—most users won’t manually manage settings

  • In shared network environments, visibility is UX — people want awareness, not just control

  • What I’d do differently:

    • Capture and save early sketches/wireframes

    • Use structured tools for collecting feedback

    • Plan for long-term case study storytelling from the start

Call 

+49 15753950041

Email 

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©2025 by Rameen Ghafoor

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